EXPLANATION OP THE PLATES. 



197 



PLATE VI. 



Fig. 



1. Tongue of Rophites 5-spi- 



nosus. 



2. Maxilla of Rophites 5-spi- 



nosus. 



3. Wing of Rophites 5-spino- 



sus. 



4. Tongue of Anthocopa pa- 



paveris. 



5. Maxilla of Anthocopa pa- 



paveris. 



6. Wing of Anthocopa papa- 



veris. 



1 . Tongue of Systropha spi- 

 ralis. 



8. Maxilla of Systropha spi- 



ralis. 



9. Antennae of male of Sy- 



stropha spiralis. 

 10. Vimgof Systropha spiralis. 



Fig. 



11. Tongue of Ptilothrix plu- 



mosus. 



12. Maxilla of Ptilothrix plu- 



mosus. 



13. Labrum of Ptilothrix plu- 



mosus. 



14. Wing of Ptilothrix plu- 



mosus. 



15. Maxillary palpus of Li- 



thurgus cornutus. 



16. Labial palpus of Lithurgus 



cornutus. 



17. Tongue of Megachile ma- 



ritima. 



18. Maxilla of Megachile ma- 



ritima. 



19. Wing of Megachile mari- 



tima. 



